Bolster for cars



[No Model.) I.

W. CASE. BOLSTER FOR CARS.

Patented Aug. 4, 1896..-

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WILLIAM CASE, OF CHICAGO, ILLINOIS, ASSIGNOR TO TI-IE NATIONAL MALLEABLE CASTINGS COMPANY, OF CLEVELAND, OHIO.`

BoLsTER FOR CARS.`

SECIFICATION forming part of Letters Patent No. 565,404, dated August 4, 1896.

Application filed April 4, 1896. Serial No. 586,189. (No model.)

T0 all whom, it 77mg concern:

Beit known that I, VLLLIAM CASE, of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Bolsters for Cars; and I do hereby declare the following to be a full,clear, and exact description thereof, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a top plan view partly broken away. Fig. 2 is a bottom plan view; and Fig. 3 is a side elevation, the right-hand half being shown in section.

In metal car-bolsters which heretofore have been commonly used the shocks or blows occasioned by the bufng of the cars are delivered against the metal bolster, the parts of which are apt to be so strained and loosened thereby as to shorten the life of the bolster materially. Various means for avoiding the evil consequences of such strains have been tried, as by placing braces across the bolster where the draft-timbers and buffing-timbers make contact with it, but such expedients have proved ineflicient or undesirable. I have provided a device in which these difficulties are overcome by using a metal carbolster so constructed that the draft-timbers pass through it, thus enabling the buiiingshocks to be distributed not upon the bolster but through all parts of the car-body. This result I accomplish in a new manner, which I shall now describe.

The bolster is composed of two or more sections divided transversely, as illustrated in the drawings. It has two end sections 2 3, with an interposed middle section 4, which latter is or may be itself composite in structure, being preferably formed of two or more parts, and,while such construction is particularly claimed, the broader claims of the speciiication are not limited thereto. The end sections are preferably made of hollow castings and taper in thickness toward the outer end, the top surfaces being flat and the bottom inclined. The inner ends of the end sections have flanges 5 5 for attaching them to the middle section 4. This latter section, as shown in the drawings, is a casting formed in two horizentally-divided parts 6 7, which, when fitted one upon the other, constitute a boX, having riveting-flanges 8 at the ends, and having transverse openings 9 for the draft-timbers, between which openings is a filler-box or column constituted by webs 10, which extend between the top and bottom plates of the sections 6 7, being preferably made integral at one end with the top section and resting at the -other end upon the companion section. The column or box constituted by these webs being directly over the center plate takes up the strong compression applied to the bolster at that point, and serves also to form the inner side of the draft-timber openin gs 9. Draft-timbers of various size may be fitted in these openings without need for changing the patterns from which the parts are cast.

Within the column lO is preferably a hollow king-bolt socket 1l, extending parallel with the column and acting therewith to transmit the load through the center plate to the truck-bolster. In assembling the pieces of the bolster the parts of the middle section 4 are iitted together, as shown, and may be connected by bolts l2. The bottom part has webs or iianges 14, which iit within or around the column of the upper part and thus hold them securely together. The section 4 is interposed between the end sections and the latter are secured rigidly J[hereto by rivets 13 passing through the meeting iianges 5 and S.

By my improved construction I secure the desirable results which I have indicated, not only without weakening the bolster, but, on the contrary, the use of the central filler-box or column increases its strength and durability. The center plate and other fittings of the bolster may be applied thereto as desired.

Within the scope of my broader claims many modiiications may be made in the form and construction of the parts, since 1. A car-bolster composed of transverselydivided sections, namely, end sections and an intermediate section, abutting directly against each other and secured through abutting flanges.-

2. A car-bolster having end sections and an intermediate section, which is secured thereto, and has an upright filler-box or column above the position of the center plates.

IOO

3. A ear-bolster having end sections and an intermediate section secured thereto, said intermediate section being itself composed of horizontally-divided parts fitted together.

4. A ear-bolster having end sections and an intermediate section secured thereto, said intermediate section being itself composed of horizontally-divided parts, one of said parts having a vertical column which bears upon the other part above the position of the oenter plates.

5. A car-bolster having end sections and an intermediate section secured thereto and itself composed of horizontally-divided parts fitted together, the upper part having a vertical column which bears upon the lower part.

6. A ear-bolster having end sections and an, intermediate section which is secured thereto my hand.

WILLIAM CASE. Witnesses THOMAS W. BAKEWELL, CLAYTON MARK. 

